What Are the Causes of Car Antifreeze Leakage?
2 Answers
The causes of car antifreeze leakage are: 1. There is a leakage point in the cooling system; 2. The lower intake manifold gasket is damaged or the lower part of the radiator upper hose is cracked; 3. The coolant filler cap cannot maintain pressure, causing intermittent warning light illumination; 4. The vehicle has a high coolant temperature fault, leading to coolant loss. Antifreeze is a type of coolant containing special additives that prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block or head during cold winter parking. It also has excellent properties such as preventing boiling in summer, preventing scale and corrosion all year round. If the antifreeze is of poor quality or even counterfeit, it will not serve the purpose of antifreeze.
After driving for so many years, coolant leakage is really a common issue, mostly caused by the aging of the cooling system. If the radiator rusts or develops cracks, the fluid will leak from there, and those hose connections can loosen and leak over time. Once the water pump seal wears out, it will also leak—I've encountered this several times myself, spotting traces during engine cleaning. A loose radiator cap is another reason, as poor pressure control can easily lead to overflow. Corrosion and perforation of coolant pipes are also quite common, especially noticeable after long drives on bumpy roads. Remember to regularly check the fluid level and the condition of system components, otherwise, engine overheating can lead to costly repairs and safety risks.